Encoder Peripheral Configuration

Map encoder peripherals in the Infineon AURIX model to peripheral registers in the MCU

Since R2024a

Description

View and edit the map of peripherals in the Infineon^® AURIX™ model to the hardware peripherals.

Encoder block is developed based on GPT12 (general purpose timer) module available in the AURIX TC3x devices.

Using the Peripheral Configuration tool, you can:

• View and edit the configuration parameters for the Encoder peripheral block.

• Configure the module specific parameters in Browser > Peripherals > Encoder . For more, see Hardware Mapping.

• Check for conflicts, if any between peripherals.

×

Open the Encoder Peripheral Configuration

• In the Simulink toolstrip, go to Hardware tab and click Hardware Mapping.

  

Parameters

Global parameters

GPT1 prescaler — Encoder GPT1 prescaler

8 (default) | 4 | 16 | 32

Select the general purpose timer (GPT) prescaler for GPT1.

GPT12

GPT12 resolution — GPT12 resolution

Two-Fold (default) | Four-Fold

Select the GPT12 resolution.

• Two-Fold - Considers two edges of encoder sensor signal A.

• Four-Fold - Considers both the edges of both encoder sensor signals A and B.

GPT12 > Encoder specification

Encoder resolution — Resolution of encoder

1000 (default) | positive scalar integer

Specify the encoder resolution.

Encoder offset (Counts) — Encoder offset in counts

0 (default) | positive scalar integer

Specify the encoder offset in counts .

GPT12 > Pins

PinA — Encoder pin A

default varies based on the module selected (default) | P10_4

Select the encoder pin A.

PinB — Encoder pin B

default varies based on the module selected (default) | P10_7

Select the encoder pin B.

Enable zero signal — Select zero signal for encoder

on (default) | off

Select this parameter if encoder has Z signal.

PinZ — Encoder pin Z

default varies based on the module selected (default) | P10_8

Select the encoder pin Z.

Dependencies

To enable the PinZ parameter, select the Enable zero signal parameter.

GPT12 > Misc

Reverse counter direction — Enable to reverse counter direction

off (default) | on

Select to reverse the counter direction.

Enable slow speed detection — Select slow speed detection

off (default) | on

Enable this parameter to measure slower speeds.

Note

Enable this parameter, if the application requires to measure the speed of the encoder at a rate faster than the encoder signals.

Speed mode threshold(RPM) — Speed mode threshold in RPM

2000 (default)

Slow speed threshold calculation is enabled when the threshold goes below the default value.

Dependencies

To enable the Speed mode threshold(RPM) parameter, select the Enable slow speed detection parameter.

GPT2 overall prescaler — Encoder GPT2 prescaler

4 (default) | 2 | 8 | 16 | 32 | 64 | 128 | 256 | 512 | 1024 | 2048

Select the general purpose timer (GPT) prescaler for GPT2.

Dependencies

To enable the GPT2 overall prescaler parameter, select the Enable slow speed detection parameter.

Enable interrupt on zero signal — Enable interrupt on zero signal for encoder

off (default) | on

Select this parameter to enable the interrupt on zero signal.

Enabling this parameter, will enable the event source name. The event source name is displayed and can be mapped in the tasks(CPU1)

Dependencies

To enable the Enable interrupt on zero signal parameter, select the Enable zero signal parameter.

GPT12 > Common pin configuration for PinA/B/Z

Input mode — PinA/B/Z input mode

Tri-state (default) | Pull up | Pull down

Select the input mode for the pinA/B/Z.

Speed — Pin speed

Speed-1 (default) | Speed-2 | Speed-3

Select the pin speed.

Voltage level — Pin voltage level

Automotive (default) | TTL-5V | TTL-3.3V

Select the pin voltage level.

Version History

Introduced in R2024a